{"id":"CVE-2026-70096","aliases":["EUVD-2026-99161","GHSA-4wmg-p3q7-xrh2"],"status":"published","title":"Windows Rich Text Edit Control Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01086,"percentile":0.65692,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-10-13T18:59:38Z","modified":"2026-11-10T20:35:09Z","products":[{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office 365 for mac"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024"},{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows 11 version 26h2"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70096","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70096"},{"url":"https://github.com/advisories/GHSA-4wmg-p3q7-xrh2"}],"sources":{"cve":[{"id":"CVE-2026-70096","title":"Windows Rich Text Edit Control Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T18:59:38.38Z","modified":"2026-11-10T20:35:09.626Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:18:27.902968Z"}],"euvd":[{"id":"EUVD-2026-99161","description":"Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T18:59:38Z","modified":"2026-11-10T20:35:09Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-10T21:23:23.709697Z"}],"ghsa":[{"id":"GHSA-4wmg-p3q7-xrh2","title":"Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to...","description":"Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T21:34:04Z","modified":"2026-10-13T21:34:12Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:13:15.111505Z"}],"nvd":[{"id":"CVE-2026-70096","description":"Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:19:21.42Z","modified":"2026-10-16T16:20:31.387Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:57.603498Z"}]}}